Brick-machine



1 (No Model.) 3 Sh8ets -Sheet 2,

W. H. STEWART.

'BRIGK MACHINE. I Patented Jan. 24, 1888.

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(No Model.) 3 Sheets-Sheet 3.

- W. H. STEWART.

BRICK MACHINE.

No. 376,759.. Patent e'd Jan; 24, 1888.

19% ems m mavvflljfiuawnt I UNITE STATES WILLIAM H. STEWART, on KANSASorrY, MISSOURI, Assrenon OF THR -j,

PATENT OFFICE. I

FOUBTHS TO ROBERTSON M. GODFREY, OF SAME PLACE.

BRICK-MACHINE.

V SPECIFICATION forming part of Letters Patent No. 376,759, datedJanuary 24,1888.

Application filed March 28, 1887. Serial No. 232,718. (No model.)

of Missouri, have invented certain new and useful Improvements inBrick-Machines, of

v which the following is a full, clear, and exact description, referencebeing had to the accompanying drawings, forming part of thisspeciiication,in which- Figure 1 represents a perspective view of abrick-machine embodying my invention and showing a portion of thehopper,8m, broken away. Fig. 2 is a plan view of the bed-plate 0, showing thebars g and h in positiomand also illustrating a knife or cutterfor-severing the surplus clay from the top of the brick. Fig. 3illustrates a view of the main frame, showing the guides or channels forthe passage of the mold-chain and an end view of the bars 9 and h. Fig.4. represents an enlarged plan view of the mortise-wheels and theiroperative mechanism. Figs. 5, 6, and 7 illustrate enlarged detailedviews of one of the links which constitute the m0ld-chain.

My present invention relates to that class of brick-machines in whichthe clay ,is taken direct from the bank and deposited into a suit; ablehopper,through which it is fed by means of a revolving shaft havingspirally-arranged flukes or blades, which cut up and'disintegrate theclay before it reaches the molds; and my invention consistsinthepeculiar constructions and combinations of devices which I shallhereinafter describe, and specificallyclaim.

To enable others skilled in the art to which my invention appertains tomake-and use the same, I will now describe its construction and indicatea preferred manner in which the same is carried out.

In the said drawings, A represents a hopper, of any suitable andapproved c0nstruction,into which the clay is dumped, shoveled, orotherwise deposited. This hopper is bolted or secured to a main frame,B, within which the mainoperatingportions of the machine aremounted,.the said main frame having at or near its juncture with thehopper a bed-plate, 0, upon which the clay is supported.

A vertically arranged shaft, D, passes through the hopper, and mainframe, and is provided with a series of flukes or blades, E, (see dottedline, Fig. 1,) which disintegrate the clay and feed the same to themolds, as I shall hereinafter describe. The lower end of the shaft D hassecured thereto a bevel-gear wheel, F, which meshes with a pinion, G, ona horizontal driving-shaft H, the said drivingshaft carrying on itsouter end a band-pulley,

I, to which power is applied to operate the with and drives a beveledwheel, L, ona horizontal shaft, M, the said shaft having secured to itsouter end a second beveled pinion, N, which engages and'drives. one ofthe mortise-- wheels 0, as I shallhereinafter set forth. v The system ofgearing, as described, is located within the main frame 13, occupyingbut little space therein, but so arranged that motion when applied tothe pulley I is transmitted directly to the vertical shaft D and. them0rtise-wheels which drive the mold-chain These wheels 0 are preferablyfour in number, located upon two sides of. the main frame, and aremounted upon transverse shafts Q, whose ends are journaled withinboxesor journals R, formed in or on the outer ends of suitable.

arms, S, which project fromthe main frame B, as shown in Fig. 1, thesaid wheels having N on the shaft M engages, whereby said mortise wheelor wheels are rotated.

The mold-forming chain comprises a number of links, V, having slottedhook-shaped ends,

- as shown in Figs. 6 and 7, and a centrally-arrangedplate or bar, a,which forms theends of contiguous molds, while a lug or projection, 12,extends from the bottom of said'link and is designed to enter themortises in the wheels O. From thedescription of these links it ismanifest as the wheels 0 rotate,-their mortises engage the projections12 and'impart movement t0 the seriesof links comprising the moldchain.

The slotted ends of the links are en gaged by rods or bars a, passingthrough lugs said ears constituting a portion of plates 6, which formthe bottom of the mold and receive and support the clay as it leaves thehopper. The plates 6 and a, as before stated, constitute the bottoms andends of the molds, the sides of said molds being formed by suitableT-sliaped plates or bars g, secured within the bed-plate O, as shown inFigs. 1 and 2, the space between the bars gbeing sufficient to permitthe plates or projections a on the links to pass between them dnring theformation of the brick. Other bars, h, are mounted in the main framedirectly beneath the plates 9, and are designed to support the links asthey pass between the said plates 9 to receive the clay. As the lugs a,pass between the plates 9, their upper ends will be found flush ornearly flush with the upper surface of the bed-plate, and as the lowerfluke or tempering augerEis contiguous to said bedplatc it is manifestin its rotation it severs the main body of clay from those portions inthe molds. The flukes or tempering auger thus virtually becomes the topof the mold, the surplus material being removed and the top of the bricksmoothed down or dressed by a curved knife or cutter, t, on one end ofthe bars or plates as shown in Figs. 2 and 3.

In addition to the guides or channels in the molds and plates 9practically close the open ings in the bed-plate O and form a solidbottom for the hopper. The clay is forced downward by the action of thetempering anger or flukes into the molds, and as the latter move forwardthey bring the top of the molded brick against the knife or cutter atthe end of the bars g,as previously'stated,and as they emerge from thesaid bars theypassaround the mortisewheels and are again caused to passbetween the plates 9, it being understood the chains are endless ones,the molded bricks simply resting upon the plates 6, from whence they maybe removed or deposited upon a board or other receptacle placed toreceive them and chain passes around the wheel, the chain resuming itsnormal or closed condition automaticallybefore the mold again enters thehopper to be filled.

Having thus described my presentinvention, what I claim as new, anddesire to secure by Letters Patent, is t l. A main frame, a hoppersecured thereto, and endless brick-molding chains, in combination with abed-plate, 0, between the frame and hopper, the T-shaped plates gin themain frame, secured to the bed-plate and forming the sides of the molds,the bars h, for supporting the chains, and mortise-wheels O, engaged bylugs on the chains, whereby said chains are driven, substantially asherein described.

2. in a brick-machine, the endless chains comprising the links V, havingthe upwardlyprojecting bars a, forming theends ofthe molds, and theplates 6, loosely mounted in said links and forming the bottom of saidmolds, in combination with a stationary bedplate, 0, having the platesg,which constitute the side walls of the mold, substantially as hereindescribed.

3. In a brick-machine, the endless traveling chains comprising the linksV,having the bars a and lugs b, the plates 6, loosely mounted in saidlinks, and forming with the bars a the ends and bottoms ofthe molds, anda stationary bed-plate between the hopper and main frame, forming thesides ofsaid molds, in combination with mortise-wheels O, engaging thelugs b and driving the chains, and mechanism between said wheels anddriving-pulley for rotating the former, substantially as hereindescribed.

4. In a brick-machine, a hopper, a main frame, a bed-plate between saidhopper and frame, a vertical shaft, D, havinga tempering anger orflukes, and a bevel-gear, F, on said shaft connecting with the maindriving mech- 'anism, in combination with a horizontal shaft,

M, having the pinion N, gearing between said shaft and "ertical shaft,mortise-wheels O,

H. STEWART.

VVitnesses:

JAS.-R. REMLEY, W. LAHMAN.

